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UNITED. STATES PATENT Fries.

JOHANN JANKA, OF PRAGUE, BOHEM[A.

VENTILATOR.

SPECIFICATION forming part of Letters Patent Ho. 351,603, dated (lo-hobo: 26, 1886. Application tiled June 23, 1886. Serial No. 205.988. (No model.)

To all whom; it may concern.-

Be it known that I, JOHANN JANKA, a citi zen of theEmpire of Austria, and a resident of Prague, in the Kingdom of Bohemia, have invented certain new and usetul Improvements in Ventilators, of which the following is a specification.

This invention relates to improvements in ventilators for living and other rooms, which differ from the others hitherto in use through their simpleconstruction and easy operation. They can be regulated, and the water enters the spray-producer already filtered, so that the atomizer is not stopped up by any matter suspended in the water.

Figure 1 of the accompanying drawings represents 'a vertical section of a ventilatorprovided with my improvements. It consists, essentially, in a U-shaped tube, A A, of any desired section. The part A of the tubeis in the room to be ventilated and the part A is in communication with the outer air. A single pipe, B, supplies the atomizers E andF' with the necessary water, the pipe B branching off shortly before reaching the atomizersin the branches 0 D. If the spray-producer F is set to work, as represented in the drawings, fresh air is introduced into the room through A, and if the spray-producer F be shut and E opened the air would be sucked out of room to be ventilated.

The construction of my new spray-producer is as follows:

Fig. 2 represents. a spray-producer in vertical section. It consists, essentially, in a-hollow pear-shaped vessel, a, fixed to the waterpipes Cor D by the short tube-like projection '1). On the lowest point the vessel or is provided with around hole, 0, in which works a conical pin, 0, which when in its highest position completely fills the hole 0, so that no water If thepin 0 be lowered a little by a rack-and-pinion arrangement, d and r, the rack being on the pin itself and the pinion on a spindle'reaching through the side of the vessel and provided with a button, d, a small annular opening will be produced round the conical pin 0, through which thewater will he forced in a conical ring of spray. (Shown in atomizer or Fi 2 re resentin a horizontal section on g 7 P g the line a; y of Fig. 2.) The more the pin 0 is loweredthe wider the ring will become through meshed being at the top.

which the water is forced, and the more water will be emitted. The force of the water, and in consequence the draft produced, can therefore be regulated or entirely shut off by the button (I.

A further improvement is the cleansing or filtering of the water before it reaches the atomizer, to prevent the atomizer from being stopped up. This arrangement isconstructed as follows: At a convenient place the watersupply pipe B is cut and a piece of tubing, \V, Fig. 3, of an inner diameter equal to the outer diameter of B, and having at one end a left-handed, at the other a right-hand, female screw-thread,is screwedonto the ends of B. Into this tube \/V is placed a wire, 8, onto which are fixed two or more fine-meshed wire sieves, S S S, of the same diameter as the tube \V, the lowest one resting on the edge of the tube B and having the widest meshes, while the others are gradually finer, the finest At a certain distance from and underneath the tube \V a little cock, H, is provided, and underneath this the stopvalve J of the supply-pipe is adjusted and the stop-valve J opened, the water will pass through B and NV, through the sieves S S S, and will reach the spray-producer almost filtered, the solid matter remain ing against the sieves. If the sleves are to be cleaned, the stop-valve J is shut and the cock H opened,-wlien the water standing above H will run out and carry the dirt accumulated against the sieves down and out with it. If it be desired to take the sieves out and clean them thoroughly the tubelV is screwed down, as in Fig. 4, and passed over the nether tube B, when the sieves can be removed. If desired, an extra sieve, f, can be arranged inside the pear-shaped vessel a of the spray-producer. Through the cock H, also,water may be drawn off at any time for domestic or other purposes. The water from the spray-producers is run off through the tube L.

Figs. 5,6,and 7 aremoditications of the venti- If the tube \V playing at the same time the air is sucked from the room and fresh airintrodueed. Both spray-producers are in this case also supplied by one water-supply pipe, B, only. Fig. 7 represents a double ventilator horizontally arranged, either one above the other or next to each other.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In the water-supply pipe B of a sprayventilator, the sleeve W'Avhieh can be slipped down, in combination with the wire sieves S S S", arranged one above the other on a Wire,

8, inside the tube \V, for the purpose of pre venting any foreign matter from entering the spray'produeer, substantially as specified.

2. In eonibination,the pear-shaped vessel, the conical valve in the bottom thereof, havjusted at will from the outside to increase or decrease the spray, as set forth.

3. In combination, the pipe B, having a cut out section, a thi1nble,W, removably covering said section, the sieves in said thimble mounted J on stem 8, the cut-off valvej, below the sieves, and the cock H, between the sieves and the out-01f valve, for the purpose set forth.

In witness whereof I have hereto set my hand in the presence of the two subscribing witnesses.

JOHANN JANKA. Witnesses:

HENRY Sonnorniu ADOLF FISCHEY. 

